Interfacial thermal conductance of buckling carbon nanotubes

Xu, K, Zhang, J, Hao, X, Wei, N, Cao, X, Kang, Y and Cai, K 2018, 'Interfacial thermal conductance of buckling carbon nanotubes', AIP Advances, vol. 8, no. 6, pp. 1-6.

Document type: Journal Article
Collection: Journal Articles

Title Interfacial thermal conductance of buckling carbon nanotubes
Author(s) Xu, K
Zhang, J
Hao, X
Wei, N
Cao, X
Kang, Y
Cai, K
Year 2018
Journal name AIP Advances
Volume number 8
Issue number 6
Start page 1
End page 6
Total pages 6
Publisher A I P Publishing LLC
Abstract Bond transition of sp2 to sp3 in carbon nanotube can be realized through bending operation at buckling location, which affects the electronic, mechanical and thermal properties of buckled carbon nanotube. In this work, thermal properties of buckled tri-walled carbon nanotube with sp3 bonds are explored using molecular dynamics. Our results reveal that interfacial thermal conductance at buckling location is sensitive to the bending angle, which decreases exponentially with increasing bending angle until 90 degree because of increasing the number of interlayer sp3 bonds. When the bending angle is beyond 90 degree, there are sp3 bonds formed on the outer-tube walls which provide new paths for heat transfer. The insight of mechanism of thermal properties is analyzed by determining atomic micro-heat flux scattering. Our findings provide a flexible and applicable method to design thermal management device. This unusual phenomenon is explained by the micro-heat flux migration and stress distributions.
Subject Optical Physics not elsewhere classified
DOI - identifier 10.1063/1.5039499
Copyright notice © 2018 Author(s). Creative Commons License
ISSN 2158-3226
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